package com.flyu.myThread.Lock;

public class DeadLock {
    public static void main(String[] args) {

        new Thread(new Makeup(0, "白雪")).start();
        new Thread(new Makeup(1, "灰姑娘")).start();

    }
}

// 口红
class Lipstick {}
// 镜子
class Mirror {}

class Makeup extends Thread{

    // 需要的资源只有一份，用static保证只有一份
    static Lipstick lipstick = new Lipstick();
    static Mirror mirror = new Mirror();

    int choice;         // 选择
    String girlName;    // 使用的人

    public Makeup(int choice, String girlName){
        this.choice = choice;
        this.girlName = girlName;
    }

    @Override
    public void run() {
        try {
            makeup();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    // 化妆，互相持有对方的锁，就是需要拿到对方的资源
    private void makeup() throws InterruptedException {
        if (choice==0){
            synchronized (lipstick){
                System.out.println(this.girlName+"获得口红的锁");
                Thread.sleep(1000);
//                synchronized (mirror){      // 避免死锁，将其放到外面
//                    System.out.println(this.girlName+"获得镜子的锁");
                }
            synchronized (mirror){      // 避免死锁，将其放到外面
                System.out.println(this.girlName+"获得镜子的锁");
            }
        }else {
            synchronized (mirror){
                System.out.println(this.girlName+"获得镜子的锁");
                Thread.sleep(2000);
//                synchronized (lipstick){
//                    System.out.println(this.girlName+"获得口红的锁");
//                }
            }
            synchronized (lipstick){
                System.out.println(this.girlName+"获得口红的锁");
            }
        }
    }
}